🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Author: gcf-owl-bot[bot]

src/types.d.ts

@@ -13,7 +13,7 @@
 // limitations under the License.
 
 /**
- * Discovery Revision: 20250615
+ * Discovery Revision: 20250706
  */
 
 /**
@@ -1740,6 +1740,10 @@ declare namespace bigquery {
    * The external service cost is a portion of the total cost, these costs are not additive with total_bytes_billed. Moreover, this field only track external service costs that will show up as BigQuery costs (e.g. training BigQuery ML job with google cloud CAIP or Automl Tables services), not other costs which may be accrued by running the query (e.g. reading from Bigtable or Cloud Storage). The external service costs with different billing sku (e.g. CAIP job is charged based on VM usage) are converted to BigQuery billed_bytes and slot_ms with equivalent amount of US dollars. Services may not directly correlate to these metrics, but these are the equivalents for billing purposes. Output only.
    */
   type IExternalServiceCost = {
+    /**
+     * The billing method used for the external job. This field is only used when billed on the services sku, set to "SERVICES_SKU". Otherwise, it is unspecified for backward compatibility.
+     */
+    billingMethod?: string;
     /**
      * External service cost in terms of bigquery bytes billed.
      */
@@ -3138,6 +3142,10 @@ declare namespace bigquery {
      * Output only. Total number of partitions processed from all partitioned tables referenced in the job.
      */
     totalPartitionsProcessed?: string;
+    /**
+     * Output only. Total slot-milliseconds for the job that run on external services and billed on the service SKU. This field is only populated for jobs that have external service costs, and is the total of the usage for costs whose billing method is "SERVICES_SKU".
+     */
+    totalServicesSkuSlotMs?: string;
     /**
      * Output only. Slot-milliseconds for the job.
      */